AbramelinOne barrier that I don't believe has been mentioned is payload and the fact that no payload maps are used in competitive play (not including highlander). This is a problem because loads of pubbers love this game mode.
Removing payload maps would make the game more "comp-centric", but it would also suck because 1. pubbers love payload and would probably quit the game if it were removed and 2. pubbing on Badwater owns.
There's really no good solution to this.
Hey man this is America! What kind of backwards, 3rd world, communist, freedom-hating person are you?